Chapter 8: Digestive System and Nutrition
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Created by:
Bjtrivelli on February 23, 2012
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23 terms
Terms | Definitions |
|---|---|
 System functions | Food to blood and removal of chemical waste |
| Major Organs of Digestive System | Oral cavity, esophagus, stomach and intestines |
| Accessory organs | Liver, gall bladder and pancreas |
| Ingestion | intake of food via mouth |
| Digestion | Chemical break down of food |
| Movement | food moves through ,major organs (GI) |
| Absorption | When food moves it spreads its nutrients across the GI then is given to blood |
| Elimination | removal of indigestible molecules |
| Stomach | Stores food and has three layers of muscles l and starts the digestion of proteins |
| Pepsin | First enzyme that breaks down protein. |
| Small intestine | 18ft long and that almost all the digestion and absorption takes place. |
| Pancreas | makes enzyme that are used in the small intestine |
| Obesity | Over weight |
| Trypsin | enzymes that digests proteins in pancreas |
| Lipase | enzymes that digests Fats in Pancreas |
| Pancreatic amylase | enzymes that digests carbohydrates |
| Liver | An organ that stores iron, vitamins A, D,E,K, B12, and glucose |
| Hepatitis | Inflammation of the liver |
| Cirrhosis | Fatty liver |
| Diarrhea | Increased peristalsis and water is not reabsorbed due to infection |
| Constipation | Feces are dry and can't be controlled with water or fiber. |
| Inflammatory bowel disease | a group of inflammatory disorders such as ulcerative colitis or Crohn's disease |
| Polyps | Small growths found in the epithelial lining that can be cancerous |
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